Home / 4,240.36-6,351.86-1,985.66

Finding the Fourth Proportional to 4,240.36, 6,351.86 and 1,985.66

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Solution

The fourth proportional to 4,240.36, 6,351.86 and 1,985.66 is: 2,974.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,240.36 : 6,351.86 = 1,985.66 : x
  2. Step 2: Convert to fraction form
    4,240.36/6,351.86 = 1,985.66/x
  3. Step 3: Cross multiply
    4,240.36x = 6,351.86 × 1,985.66
  4. Step 4: Simplify right side
    4,240.36x = 12,612,607.53
  5. Step 5: Solve for x
    x = 12,612,607.53/4,240.36
  6. Step 6: Final answer
    x = 2,974.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.